peng_hao And it doesn't work when we reinstall the pyqt module separately

Why did you reinstall it separately?

Check what Qt packages are installed on your system (use the conda list command). Are other conda PyQt applications working?

      sb10q
      the pyqt5 has been installed (conda list)

      you can see that in the picture I have posted
      "from PyQt5 import QtCore, QtGui, QtWidgets
      ImportError: DLL load failed: The specified module could not be found “
      the PyQt can work in the env base, but it can't work in the env artiq

      How can I install the artiq to avoid this bug?

      we have installed the artiq successfully in other computer before. we find that the pyqt=5.6.0
      in this computer we find the pyqt=5.9.2. Does this package version cause this problem?

        Can you remove the non-working Qt packages from the artiq environment and then install carefully (e.g. note that qt5 and qt are different package names) those Qt packages that are known to work? e.g. with commands like conda install qt=5.6.
        Someone also had luck removing the Qt package and then installing it with pip, see: https://github.com/m-labs/artiq/issues/1331

        How can I install the artiq to avoid this bug?

        By using package managers other than conda...

          sb10q
          Thank you for your reply.
          We have solved the problem by reinstall the PyQt5 ( pip install PyQt5==5.9 )

            12 days later

            Hopefully, that should be resolved and this pip workaround no longer necessary after the recent changes I made to the packaging system and our channel on anaconda.org (though conda packaging has a nasty tendency of being a whack-a-mole game).